Environmental control system including mixed-flow turbine

A system for a vehicle comprising:

• a plurality of inlets for receiving a plurality of mediums, respectively;
• a device arranged in fluid communication with at least one inlet of the plurality of inlets, the device comprising:
• a shaft rotatable about a shaft axis;
• a compressor connected to the shaft, the compressor being fluidly connected to a first inlet of the plurality of inlets;
• a turbine connected to the shaft, wherein the turbine is fluidly connected to only the first inlet of the plurality of inlets such that only a first medium of the plurality of mediums is provided to a turbine inlet, the turbine being configured to drive the compressor using energy extracted from the first medium, wherein the turbine is a mixed-flow turbine and the turbine and the compressor are fluidly connected to the first inlet of the plurality of inlets in parallel.